$a = 1;
$b = $a;
$c = $a;
$d = $c;
echo($a);
echo($b);
echo($c);
echo($d);
test($a,$b,$c);
function test($a,$b,$c){
    $d = $a;
    $e = $b;
    $f = $d+$e+$a+$b+$c+19;
    $v = get_version();
    echo($f);
    sleep("abc");
    echo($v);
    echo($v);
    echo($v);
    echo($v);
    echo($v);
    $t = get_time();
    echo($t);
    $t = get_time();
    echo($t);
    echo(get_curl_version());
    $r = get_url("http://csstools.chinaz.com/common/js/mobilepage.js?v=20200721");
    echo($r);
}